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  <title>Regular expression match ignoring case with multibyte support</title>
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  <div id="layout-content"><div id="function.mb-eregi" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mb_eregi</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mb_eregi</span> &mdash; <span class="dc-title">Regular expression match ignoring case with multibyte support</span></p>

 </div>
   
 <div class="refsect1 description" id="refsect1-function.mb-eregi-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>mb_eregi</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$pattern</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>
   [, <span class="methodparam"><span class="type">array</span> <code class="parameter reference">&$regs</code></span>
  ] ) : <span class="type">int</span></div>

  <p class="simpara">
   Executes the case insensitive regular expression match with multibyte support.
  </p>
 </div>

 
 <div class="refsect1 parameters" id="refsect1-function.mb-eregi-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">pattern</code></dt>

     <dd>

      <p class="para">
       The regular expression pattern.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">string</code></dt>

     <dd>

      <p class="para">
       The <span class="type"><a href="language.types.string.html" class="type string">string</a></span> being searched.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">regs</code></dt>

     <dd>

      <p class="para">
       If matches are found for parenthesized substrings of
       <code class="parameter">pattern</code> and the function is called with the
       third argument <code class="parameter">regs</code>, the matches will be stored
       in the elements of the array <code class="parameter">regs</code>.
       If no matches are found, <code class="parameter">regs</code> is set to an empty
       array.
      </p>
      <p class="para">
       <var class="varname"><var class="varname">$regs[1]</var></var> will contain the substring which starts at
       the first left parenthesis; <var class="varname"><var class="varname">$regs[2]</var></var> will contain
       the substring starting at the second, and so on.
       <var class="varname"><var class="varname">$regs[0]</var></var> will contain a copy of the complete string
       matched.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.mb-eregi-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the byte length of the matched string if a match for
   <code class="parameter">pattern</code> was found in <code class="parameter">string</code>,
   or <strong><code>FALSE</code></strong> if no matches were found or an error occurred.
  </p>
  <p class="para">
   If the optional parameter <code class="parameter">regs</code> was not passed or
   the length of the matched string is <em>0</em>, this function returns <em>1</em>.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.mb-eregi-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>7.1.0</td>
      <td>
       <span class="function"><strong>mb_eregi()</strong></span> will now set <code class="parameter">regs</code> to
       an empty <span class="type"><a href="language.types.array.html" class="type array">array</a></span>, if nothing matched. Formerly,
       <code class="parameter">regs</code> was not modified in that case.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 notes" id="refsect1-function.mb-eregi-notes">
  <h3 class="title">注释</h3>
  
  <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"><span class="function"><a href="mb_regex_encoding.html" class="function">mb_regex_encoding()</a></span>
指定的内部编码或字符编码将会当作此函数用的字符编码。</p></p></blockquote>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.mb-eregi-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mb_regex_encoding.html" class="function" rel="rdfs-seeAlso">mb_regex_encoding()</a> - Set/Get character encoding for multibyte regex</span></li>
    <li class="member"><span class="function"><a href="mb_ereg.html" class="function" rel="rdfs-seeAlso">mb_ereg()</a> - Regular expression match with multibyte support</span></li>
   </ul>
  </p>
 </div>


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